Here's why:
* Learning is a process of forming neural connections in our brains. Once these connections are made, they tend to persist, even if we try to forget what we've learned.
* The brain is constantly seeking patterns and making connections. This makes it difficult to completely erase knowledge, even if it's outdated or inaccurate.
* Memories can be suppressed, but not erased. While we might choose to ignore or repress certain knowledge, it remains within our subconscious and can resurface unexpectedly.
* Even unlearning involves learning. To unlearn something, we need to replace the old knowledge with new information. This means we're still engaging in the process of learning.
However, while unlearning is difficult, it's not impossible. We can consciously choose to engage in new experiences and learn new things that challenge our existing beliefs and knowledge. This can help us to refine our understanding of the world and to develop a more flexible and adaptable mindset.
Ultimately, the statement that "what we learn can seldom be unlearned" highlights the power and permanence of learning. It reminds us to be mindful of what we choose to learn and to constantly be open to new knowledge and perspectives.